Spirit Airlines and its hilarious new frontiers of parsimony and abuse. They charge a remarkably high price (about $40) for bringing a carry-on, and they do remarkably little to inform you of this fee. Passenger after passenger is pulled out of the boarding line and separated from their money. The unhappiness is stunning. Sour faces swearing never-again, desperate people mashing their assorted belongings into a single wheezing purse. A bummer of a business model.